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See detailThe reliability of isoinertial force-velocity-power profiling and maximal strength assessment in youth.
Meylan, César; Cronin, John; Oliver, Jon et al

in Sports Biomechanics (2015)

The purpose of this study was to quantify the inter-session reliability of force-velocity-power profiling and estimated maximal strength in youth. Thirty-six males (11-15 years old) performed a ballistic ... [more ▼]

The purpose of this study was to quantify the inter-session reliability of force-velocity-power profiling and estimated maximal strength in youth. Thirty-six males (11-15 years old) performed a ballistic supine leg press test at five randomized loads (80%, 100%, 120%, 140%, and 160% body mass) on three separate occasions. Peak and mean force, power, velocity, and peak displacement were collected with a linear position transducer attached to the weight stack. Mean values at each load were used to calculate different regression lines and estimate maximal strength, force, velocity, and power. All variables were found reliable (change in the mean [CIM] = - 1 to 14%; coefficient of variation [CV] = 3-18%; intraclass correlation coefficient [ICC] = 0.74-0.99), but were likely to benefit from a familiarization, apart from the unreliable maximal force/velocity ratio (CIM = 0-3%; CV = 23-25%; ICC = 0.35-0.54) and load at maximal power (CIM = - 1 to 2%; CV = 10-13%; ICC = 0.26-0.61). Isoinertial force-velocity-power profiling and maximal strength in youth can be assessed after a familiarization session. Such profiling may provide valuable insight into neuromuscular capabilities during growth and maturation and may be used to monitor specific training adaptations. [less ▲]

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See detailLattice dynamics and magnetic properties in selected functional iron compounds
Herlitschke, Marcus ULg

Doctoral thesis (2015)

The presented thesis reports about to the investigation of four different materials with respect to their magnetic properties and their lattice dynamics. The carbodiimide FeNCN, which was recently ... [more ▼]

The presented thesis reports about to the investigation of four different materials with respect to their magnetic properties and their lattice dynamics. The carbodiimide FeNCN, which was recently synthesized for the first time and can be considered as an non-oxidic analogue to FeO, is discussed in chapter 2. The NCN 2− group bridges two iron and exhibits a double negative charge, similar to the oxygen in FeO. This material exhibits an increased magnetic order temperature as compared to FeO. FeNCN was investigated with magnetometry, Mössbauer spectroscopy and nuclear inelastic scattering, revealing an unusual behaviour of the hyperfine parameters below the ordering temperature. This observation is discussed with respect to the crystal field and the d-orbital level population with temperature. The investigation of the magnetocaloric material Mn5−x FexSi3 is reported in chapter 3 with focus on the interaction of magnetism and lattice dynamics. Among the Mn5−xFe x Si3 compounds, MnFe4 Si3 is the most interesting one due to the possible application as a room temperature refrigeration material. The investigation reveals that a direct measurement of the influence of the magnetocaloric effect on the density of iron phonon states is not possible, however, the elasticity was observed to be strongly influenced by this effect. The studies on the spin orientation in nanospheres and a NANOPERM alloy are discussed in chap ter 4 and chapter 5. Two approaches were followed in order to investigated the spin orientation, nuclear forward scattering and nuclear resonant small-angle X-ray scattering. In the first part, maghemite nanospheres are analysed with in-field nuclear forward scattering, revealing that the spins orient only partially along the direction of the applied magnetic field. A modeled magnetization calculated from the observed degree of spin orientation matches excellently the macroscopic magnetometry data and literature values. Though revealing the amount of oriented spins, nuclear forward scattering is not sensitive to their position in the nanoparticles. Thus, the nuclear forward scattering was combined with small-angle X-ray scattering, leading to small-angle patterns in dependence of the local spin orientation in the aforementioned samples. [less ▲]

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See detailLes institutions belges dans leur contexte européen : un succinct tout d'horizon
Behrendt, Christian ULg

Conference given outside the academic context (2015)

Detailed reference viewed: 25 (1 ULg)
See detailThe role on brand anthropomorphism in consumers' self-disclosure
Gretry, Anaïs ULg; Horvath, Csilla

Scientific conference (2015, January 20)

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See detailEspace, temps et psychopathologie en prison
Englebert, Jérôme ULg

Scientific conference (2015, January 19)

L’analyse du cas de Nathan, sorte d’épisode princeps de notre analyse de l’univers carcéral, nous permettra d’étudier les notions de temps et d’espace. Ces deux coordonnées sont fondamentales, tant pour ... [more ▼]

L’analyse du cas de Nathan, sorte d’épisode princeps de notre analyse de l’univers carcéral, nous permettra d’étudier les notions de temps et d’espace. Ces deux coordonnées sont fondamentales, tant pour la considération anthropologique de l’homme situation d’enfermement que pour la compréhension psychopathologique. À partir de cette analyse, dans laquelle nous évoquerons notamment un texte peu connu de Sartre sur les Visages ainsi que la philosophie des émotions de Scheler, c’est la problématique fondamentale du corps que nous évoquerons. L’épisode psychopathologique du Gate fever (la « fièvre de la porte ») vécu par Nathan nous permettra également d’évoquer le vécu émotionnel paradoxal de l’expérience psychotique. [less ▲]

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See detailCommotion cérébrale
Kaux, Jean-François ULg

Conference (2015, January 19)

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See detailProduction of extracellular polysaccharide by Enterobacter A47 using cheese whey as the sole carbon source
Antunes, S.; Alves, V.D.; Grandfils, Christian ULg et al

in Proceeding of the meeting (2015, January 19)

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See detailCharacterization of the chitin-glucan complex extracted from Komagataella pastoris cell wall
Farinha, I.; Duarte, P.; Pimentel et al

in Proceeding of the meeting (2015, January 19)

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See detailApplication of Total Error Strategy in Validation of Affordable and Accessible UV-Visible Spectrophotometric Methods for Quality Control of Poor Medicines
Mbinze, Kingenge; Nsangu Mpasi, Jean; Maghe, Elza et al

in American Journal of Analytical Chemistry (2015), 6

In the framework of fighting against the poor quality medicines sold in developing countries using classical analytical methods easily accessible in those countries, four UV-Visible spectrophotometric ... [more ▼]

In the framework of fighting against the poor quality medicines sold in developing countries using classical analytical methods easily accessible in those countries, four UV-Visible spectrophotometric methods for one antimalarial (quinine) and two antibiotics (amoxicillin and metronidazole) have been developed and validated according to the total error strategy using the accuracy profiles as a decision tool. The dosing range was 2-10µg/mL (for quinine sulfate in tablet), 4-12µg/mL (for quinine bichlorhydrate in oral drop - metronidazole benzaote in oral suspension) and 15-35µg/mL (for amoxicillin trihydrate in capsule). The validated methods were then applied in determining the content of some analogous medicines sold in the Democratic Republic of Congo. Thus, the proposed UV-Visible spectrophotometric methods are simple and suitable to quantify quinine, amoxicillin and metronidazole in different pharmaceutical forms. [less ▲]

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See detailFighting Poor Quality Medicines: Develop-ment, Transfer and Validation of Generic HPLC Methods for Analyzing two WHO Recommended Antimalarial Tablets
Mbinze Kindenge, Jérémie; Yemoa, Achille; Lebrun, Pierre ULg et al

in American Journal of Analytical Chemistry (2015), 6

As serious but neglected public health problems, poor quality medicines, i.e. for antimalarial medicines, urged to be fought. One of the approaches is to consider the analytical chemistry and separative ... [more ▼]

As serious but neglected public health problems, poor quality medicines, i.e. for antimalarial medicines, urged to be fought. One of the approaches is to consider the analytical chemistry and separative techniques. In this study, a generic liquid chromatographic method was firstly devel-oped for the purpose of screening 8 antimalarial active ingredients, namely amodiaquine (AQ), piperaquine (PPQ), sulfalene (SL), pyrimethamine (PM), lumefantrine (LF), artesunate (AS), artemether (AM) and dihydroartemisinine (DHA) by applying DoE/DS optimization strategy. Since the method was not totally satisfying in terms of peak separation, further experiments were undergone applying the same development strategy while splitting the 8 ingredients into five groups. Excellent prediction was observed prior to correlation between retention times of predicted and observed separation conditions. Then, a successful geometric transfer was realized to reduce the analysis time focusing on the simultaneous quantification of two WHO's recommended ACTs in anti-malarial fixed-dose combination (AM-LF and AS-AQ) in tablets. The optimal separation was achieved using an isocratic elution of methanol-ammonium formate buffer (pH 2.8; 10mM) (82.5: 17.5, v/v) at 0.6ml/min through a C18 column (100mm×3.5mm, 3.5 μm) thermostated at 25°C. After a successful validation stage based on the total error approach, the method was applied to determine the content of AM/LF or AS/AQ in seven brands of antimalarial tablets currently marketed in West, Central and East Africa. Satisfying results were obtained compared to the claimed contents. [less ▲]

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See detailThe Mediation Service, what interest for emergencies?
PIAZZA, Justine ULg; BRASSEUR, Edmond ULg; DOPPAGNE, Caroline ULg et al

Poster (2015, January 17)

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See detailLa mise en abyme comme procédé comique
Saint-Amand, Denis ULg

Conference (2015, January 17)

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See detail"Oblitérations et mise en abyme dans A Humument de Tom Phillips"
Belloi, Livio ULg; Delville, Michel ULg

Conference (2015, January 17)

Dans cette communication, nous nous employons à étudier les différents effets de réflexivité dont certaines pages de "A Humument", l'œuvre majeure de l'artiste anglais Tom Phillips, se font volontiers le ... [more ▼]

Dans cette communication, nous nous employons à étudier les différents effets de réflexivité dont certaines pages de "A Humument", l'œuvre majeure de l'artiste anglais Tom Phillips, se font volontiers le lieu. [less ▲]

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See detailAcheter, cuisiner, transmettre. Diversification des choix alimentaires des familles marocaines en contexte migratoire.
Mescoli, Elsa ULg

Conference (2015, January 16)

Les études autour des cultures alimentaires contemporaines, menées dans le cadre de différentes disciplines, mettent en évidence le dynamisme interne et interrelationnels qui caractérise les gastronomies ... [more ▼]

Les études autour des cultures alimentaires contemporaines, menées dans le cadre de différentes disciplines, mettent en évidence le dynamisme interne et interrelationnels qui caractérise les gastronomies, plutôt qu’une « pureté » et « immobilisme » originels (La Cecla, 1998). Cependant, lorsqu’il s’agit d’analyser le rapport entre alimentation et migration, une essentialisation des habitudes se produit. Celles des migrants sont souvent considérées comme résistantes au changement, et elles deviennent les indicateurs de la disposition à « s’intégrer » à la société locale. Dans ce contexte discursif, où différentes règles interagissent en déterminant l’inclusion ou l’exclusion des individus de certains groupes (la communauté majoritaire, la collectivité « saine » etc.), les familles issues de la migration vivent et exercent leur quotidien alimentaire. Bricoler avec ces règles surdéterminées leur permet d’exprimer une créativité qui se met en œuvre à plusieurs niveaux : celui de l’approvisionnement, celui de la préparation des repas, celui de la transmission des savoir-faire entre les générations. Cette communication vise à présenter les données collectées au cours d’un travail de terrain ethnographique mené pendant dix-huit mois au milieu d’un groupe de femmes marocaines résidentes dans la province de Milan en Italie. Observations et entretiens ont été conduits à la fois dans les maisons et les espaces publics. Ils portaient sur les (micro)pratiques alimentaires entendues comme facteurs centraux dans la définition du soi, suivant une approche praxéologique à la subjectivation (Warnier, 2001). Grâce à cette analyse, il sera possible de constater qu’une culture alimentaire composite se redéfinit au niveau familial, bien qu’elle ne soit pas exemptée de l’effet de dynamiques culturelles, sociales, économiques et politiques plus amples et apparemment structurantes. On assiste à une diversification des pratiques. D’un côté, avec leurs déplacements pour faire leurs achats, femmes et hommes dessinent des chorégraphies complexes à l’intérieur de la ville, et ils engagent aussi une circulation transnationale des biens alimentaires. De l’autre côté, mères et filles puisent de savoirs différents pour faire face à leurs exigences, en s’appuyant sur une pluralité d’outils (mémoire incorporée, bouche à oreille, livres de recettes, internet). Ainsi, les familles continuent d’effectuer un choix actif en matière d’alimentation. L’analyse sera accompagnée par des supports visuels. [less ▲]

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